Wiktionary
n. any nonexpendable item of equipment which has been fixed in place or attached to a craft, vehicle or other equipment, but which may be severed or removed without impairing the item removed or affecting the basic function of the object to which it is fastened.
Usage examples of "accessory equipment".
He knew he should wait a little and take others, but he was so sure he had stumbled on an important mystery that he had to get going, and quickly folding his accessory equipment he descended the ladder and made his way out.
He knew he should wait a little and take others, be was so sure he had stumbled on an important mystery that he had to get going, and quickly folding his accessory equipment he descended the ladder and made his way out.
In practice, that meant the steamers and their accessory equipment.
Monk's rifle had been acquired for purposes of reality, and it was a huge thing, a muzzle loader with an octagon barrel that had a slight twist instead of rifling, and was so heavy that a pitchfork-shaped rest for the barrel was accessory equipment.